A proof of concept: putting ClojureScript code into an HTML document. What you see here is derived from ClojureScript compiled in ClojureScript, though I am sure that Joel Martin never intended for his code to be used as badly as I have used it. Blame me, not him :)
My thinking was as follows: if his ClojureScript REPL can compile from strings entered into a text area, why can’t it compile from strings that are in an HTML document. I knew that sort of thing was possible; processing-js can do it. In fact, I lifted some of their code and modified it slightly; it's in the load_ext.js file.
I have put this all together without a thorough understanding of the original (as will be obvious when you look at the code). Again, it’s a proof of concept, and, if it turns out to be useful, I leave it to smarter and more skilled people to make it work better.